TwinTurbo.NET: Nissan 300ZX forum - Odd smoke issue
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Subject Odd smoke issue
     
Posted by BannonZ on July 13, 2012 at 9:21 AM
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Message So here's the issue I'm having, and it's really bothering me so I hope you guys can offer some advice.

I just put in new 555 old style Nismo injectors, everything's been working great. The engine purrs like it hasn't since I bought the car in 2007. Here is the issue that I'm having.

When I first put the injectors in, there was a minor intermittent smoke issue that seemed to be remedied with some marvel mystery oil in the fuel tank and the oil.

My issue is: I have trying to brake the injectors in before I push the car. However, in the past 500 miles or so that I've had the injectors in the car. If I push it a little, I get a serious dump of whiteish/light blue smoke out of the rear of the car when I take my foot off the gas, until I hit the engine pedal again and give the car a little gas back. Once I do so, and keep the RPM's at around 3-3500 the smoke goes away.

Im not thinking its the turbo's because I can boost them just fine, they're smooth and have a nice whistle to them. Even when it's smoking the engine seems to have a nice rythym to it, I dont hear it misfire or anything.

Any idea's on this? PCV's? Too much oil? Im totally at a loss. I lost my most talented tech out of our service department so I cant even get a straight answer as no one else knows the car.

     
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